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Finding the Fourth Proportional to 1,877.35, 2,822.09 and 1,742.08

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Solution

The fourth proportional to 1,877.35, 2,822.09 and 1,742.08 is: 2,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.35 : 2,822.09 = 1,742.08 : x
  2. Step 2: Convert to fraction form
    1,877.35/2,822.09 = 1,742.08/x
  3. Step 3: Cross multiply
    1,877.35x = 2,822.09 × 1,742.08
  4. Step 4: Simplify right side
    1,877.35x = 4,916,303.85
  5. Step 5: Solve for x
    x = 4,916,303.85/1,877.35
  6. Step 6: Final answer
    x = 2,618.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.